TOTAL VOLUME:
$134.2b
24H VOL:
$126,324,530
24H TRANSACTIONS:
2,388,728,490
OPEN INTEREST:
$1,434,646,834
406,019
Markets across
30,401
events
MATCHED EVENTS:
2,689
PLATFORM COVERAGE:
5
Polymarket:
39%
VS.
Kalshi:
61%
Closed: Jul 5, 2:00 AM EST
Kalshi
This event tracks the lowest temperature recorded in San Antonio on July 4, 2026. The outcome will be determined by the National Weather Service's official daily climatological report for San Antonio, which provides the most authoritative temperature measurement for the region.
Resolution is based on the minimum temperature recorded at San Antonio on July 4, 2026, as reported in the National Weather Service's Climatological Report (Daily). The official data source is accessed via the NWS Southern Region Climate portal under the San Antonio location. Temperature ranges are divided into six bands: 68°F or below, 69-70°F, 71-72°F, 73-74°F, 75-76°F, and 77°F or above. Each band corresponds to a distinct outcome. Traders should note that preliminary NWS data may be subject to rounding and conversion nuances, and the final official report should be used for resolution rather than real-time weather services.
Prediction market odds reflect real-money commitments from traders who stake capital on their temperature forecasts, creating a financial incentive for accuracy. This differs from traditional analyst forecasts, which may rely on models or historical averages without direct financial accountability. This market aggregates dispersed knowledge from many participants, often revealing consensus or disagreement about whether the low will fall into specific temperature bands. Comparing the odds here to published meteorological outlooks for early July can highlight where professional forecasters and market participants align or diverge on summer conditions.
On Kalshi, this market is priced through an order-book mechanism where traders buy and sell shares corresponding to different temperature ranges. On Kalshi, prices reflect that venue's order book, liquidity, and how traders price the outcome right now. Each outcome contract reflects the probability traders assign to that temperature band occurring on July 4, 2026. Prices move continuously as new orders flow in, with the spread between bid and ask prices tightening or widening based on trading activity and conviction. The platform's matching engine ensures transparent price discovery, allowing you to enter or exit positions at market rates or place limit orders to target specific price levels.
This market resolves around Jul 5, 2026, after July 4, 2026 has concluded. The outcome is determined by the verified lowest temperature recorded in San Antonio on that date, confirmed once the event is observable from credible public reporting. Traders holding shares in the outcome band that matches the actual low receive their payout, while other positions expire worthless. The resolution window allows time for official temperature data to be finalized and cross-checked before final settlement occurs.
Major weather pattern shifts, seasonal climate forecasts, and long-range models issued by meteorological agencies can drive significant price moves in this market. El Niño or La Niña developments, upper-atmosphere pressure systems, and historical temperature anomalies for early July in Texas all influence trader positioning. As summer 2026 approaches, updated seasonal outlooks and real-time weather data will sharpen expectations. Extreme heat waves or unusual cold snaps in the weeks leading up to July 4 may also shift the market's center of gravity, as traders reassess the probability of different temperature outcomes.